A phase-to-phase spacer device for damping subspan oscillations of a power transmission line

Abstract

This invention belongs to the field of suppressing secondary span oscillations in transmission lines, specifically relating to an interphase spacer device for suppressing secondary span oscillations in transmission lines. The device includes a spacer assembly frame, with a wire connector on the outer side of the assembly frame and a wire fixing ring on the outer side of the connector. By incorporating a damping sleeve with uniformly distributed annular buffer springs inside the bushing, when secondary span oscillations occur in the transmission line, the damping sleeve absorbs the vibration energy. Simultaneously, the elastic deformation of multiple buffer springs distributes and buffers the vibration impact force in various directions, gradually weakening the transmission of vibration. This effectively reduces the amplitude of line oscillations, preventing direct transmission of vibration to the transmission conductors and the spacer assembly frame, significantly reducing fatigue wear and aging of the conductors and fittings, fundamentally improving the stability of transmission line operation, and solving the problems of poor vibration suppression and inability to buffer line vibration in multiple dimensions with traditional spacers.

Description

Technical Field

[0001] This invention relates to the field of technology for suppressing secondary span oscillations in transmission lines, specifically to a phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines. Background Technology

[0002] Transmission lines are the core channels of the power system, responsible for transmitting electrical energy from power plants to load centers. They are mainly divided into two categories: overhead lines and cable lines, and further classified into different levels according to voltage level and current type.

[0003] In related technical fields, spacers are usually installed on transmission lines during operation. Their main purpose is to prevent secondary span oscillations. These spacers are arranged with different spacing to try to suppress oscillations and reduce mutual collisions and wear between conductors. However, under windy weather conditions, due to the continuous effect of wind load and the instability of airflow, transmission lines may still experience significant oscillations. It is difficult to effectively weaken or absorb the vibration force, resulting in the inability to dissipate the oscillation energy. This may lead to line fatigue, loosening of components, or even breakage, thereby bringing safety hazards and operational risks, and posing a potential threat to the stability and reliability of the power grid.

[0004] Therefore, it is necessary to provide a phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines. This invention solves the problem that in current transmission lines, the spacers installed are used to protect against secondary span oscillations. Although different spacings are used to prevent oscillations, oscillations still occur in windy weather. The spacers cannot weaken or absorb the vibration force, which poses a certain danger.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines, comprising a spacer assembly frame, an electrical connector disposed on the outer side of the spacer assembly frame, an electrical fixing ring disposed on the outer side of the electrical connector, a self-locking component disposed on the top of the electrical connector, bushings disposed inside the electrical fixing ring and inside the electrical connector, a buffer damping component disposed inside the bushing, and a spacing adjustment component disposed inside the electrical connector.

[0007] Preferably, the self-locking assembly includes a shaft, which is fixedly connected inside the wire retaining ring. A connecting frame is fixedly connected to the outside of the wire connector, and the connecting frame is rotatably connected to the shaft. A worm gear is fixedly connected to the surface of the shaft, and a worm is engaged with the outside of the worm gear.

[0008] The above technical solution, by using a shaft and connecting frame to achieve the rotational connection between the wire fixing ring and the wire connector, can adapt to the slight angular deviations and deformations generated during the operation of the transmission line, avoiding stress concentration and wear breakage of the hardware caused by rigid connection. At the same time, by utilizing the meshing transmission structure of the worm gear and worm on the outside of the shaft, the rotation angle of the wire fixing ring can be precisely controlled. Combined with the self-locking structure, self-locking fixation is achieved after angle adjustment, effectively avoiding line deviation and swaying caused by line vibration in the wind and secondary span oscillation, further improving the device's fixation stability on the line, and adapting to complex line operation stress conditions.

[0009] Preferably, the buffer damping assembly includes a damping sleeve located inside the bushing, and a buffer spring is fixedly connected to the outer side of the damping sleeve, with the outer side of the buffer spring fixedly connected to the inner wall of the bushing.

[0010] By using the above technical solution, an integrated buffer damping structure can be formed by setting a damping sleeve inside the bushing and arranging a buffer spring between the damping sleeve and the inner wall of the bushing. When the transmission line experiences secondary span oscillation and generates vibration impact, the damping sleeve can effectively absorb the vibration energy. At the same time, the buffer spring buffers the instantaneous impact force through elastic expansion and contraction deformation, weakening the vibration transmission layer by layer, avoiding the vibration from being directly transmitted to the spacer assembly and transmission conductor, significantly reducing the line oscillation amplitude, reducing the fatigue wear and aging rate of conductors and fittings, and effectively improving the safety and stability of the long-term operation of the transmission line.

[0011] Preferably, the spacing adjustment assembly includes a threaded opening on the surface of the wire connector, and a fixing bolt is threadedly connected to the outer side of the threaded opening. The fixing bolt is threadedly connected to the spacer assembly frame.

[0012] The above technical solution achieves threaded connection between the wire connector and the spacer assembly frame by opening a threaded port on the surface of the wire connector and using fixing bolts. The structure is simple and easy to assemble and disassemble. The staff can flexibly adjust the installation position of the wire connector according to the actual installation spacing and line specifications of the transmission line, accurately matching the spacer layout requirements under different working conditions. At the same time, the threaded locking structure is firmly fixed and can effectively resist external disturbances caused by severe weather such as strong winds, rain and snow, avoid device spacing deviation, ensure the stable performance of the device in suppressing secondary spacing oscillations, and reduce the difficulty of on-site installation and commissioning.

[0013] Preferably, a support ring is fitted onto the surface of the worm gear, and the support ring is fixedly connected to the surface of the wire connector.

[0014] The above technical solution provides all-around support and limitation for the worm by mounting a support ring on the surface of the worm gear and fixing it to the surface of the wire connector. This effectively limits the radial wobble and axial displacement generated during the operation of the worm gear, preventing misalignment, jamming, and tooth breakage during worm gear meshing. It ensures smooth operation and precise adjustment of the transmission structure, while also reducing wear on the worm gear, extending the service life of the transmission components, and ensuring the long-term stability and effectiveness of the device's self-locking and angle adjustment functions.

[0015] Preferably, a protective ring is fixedly connected to the outer side of the bushing, and the protective ring is in contact with the damping sleeve.

[0016] By using the above technical solution, a protective ring that is fixedly connected to the outside of the bushing and contacts the damping sleeve can effectively protect the core damping and buffering components such as the internal damping sleeve and buffer spring. This isolates the components from corrosive media such as rainwater, sand, fog, and condensation in the outdoor environment, preventing problems such as rust, dust accumulation, and jamming failure of the buffer damping components. At the same time, the protective ring can buffer external force damage caused by external impacts and friction, protect the integrity of the internal buffer structure, ensure that the device has stable damping and vibration suppression capabilities for a long time, and reduce the probability of equipment failure and operation and maintenance costs.

[0017] Preferably, an operating block is fixedly connected to the inner side of the worm gear, and the operating block is located on the left side of the wire connector.

[0018] The above technical solution provides a convenient force application point for workers to adjust the worm gear transmission structure by setting an operating block exposed on the left side of the wire connector on the inner side of the worm gear. The worm gear can be easily rotated without the need for special and complicated tools to complete the adjustment of the wire fixing ring angle and the tightness of the wire fixing. This greatly simplifies the operation process of on-site debugging, disassembly, and maintenance of the device, improves construction and maintenance efficiency, meets the convenience requirements of outdoor high-altitude operations, and reduces the difficulty and safety risks of high-altitude operations.

[0019] Preferably, a protective cover is provided on the left side of the wire connector, and the protective cover is located outside the worm gear.

[0020] By using the above technical solution, and by installing a protective cover on the left side of the wire connector and the outside of the worm gear, the core structure of the meshing transmission of the worm gear and worm can be fully enclosed and protected. This effectively blocks the intrusion of outdoor wind, sand, rain, snow, birds, and debris, and prevents dust, rust, and jamming on the transmission gear teeth. At the same time, it can resist damage from external impacts caused by falling objects from heights and line swaying, ensuring the accuracy and stability of the transmission self-locking structure, preventing device locking failure and vibration damping function failure due to transmission structure failure, and improving the device's adaptability and operational reliability in harsh outdoor environments.

[0021] Preferably, the number of buffer springs is several, and the buffer springs are evenly distributed in a ring.

[0022] By employing the above technical solution, and by arranging several buffer springs in a uniform ring distribution, the damping sleeve can be subjected to more uniform force. The vibration impact force generated by line oscillation can be buffered synchronously by multiple sets of buffer springs, avoiding the problems of buffer spring deformation and failure, and damping sleeve offset and wear caused by excessive force at a single point. It absorbs vibration energy from all directions in an all-round and comprehensive manner, greatly improving the buffering damping and vibration suppression effect of the device. At the same time, the uniformly distributed buffer spring structure can improve the overall structural balance and structural strength, and extend the overall service life of the device.

[0023] Preferably, it further includes an anti-torsion assembly, which includes a first fixing plate and a second fixing plate. The first fixing plate and the second fixing plate are both fixedly connected inside the spacer assembly frame. There are two spacer assembly frames. A fixing tube is fixedly connected to the right side of the first fixing plate, and a fixing rod is fixedly connected to the left side of the second fixing plate. The fixing rod is slidably connected to the fixing tube. A threaded disc is fixedly connected to the surface of the fixing tube. A metal disc is fixedly connected to the surface of the fixing rod. A screw is rotatably connected inside the metal disc. The screw is threadedly connected to the threaded disc. An anti-slip block is fixedly connected to the right side of the screw. The surface of the anti-slip block has anti-slip textures. A first reinforcing disc is fixedly connected to the surface of the fixing rod, and a second reinforcing disc is fixedly connected to the surface of the fixing tube. Both the first reinforcing disc and the second reinforcing disc are made of alloy.

[0024] By adding an anti-torsion assembly consisting of a first fixed plate, a second fixed plate, a fixed tube, a fixed rod, a screw, and a reinforcing plate, the device can achieve limited anti-torsion of the structures at both ends. This effectively solves the problem of overall torsion and misalignment of the spacer bars caused by conductor swaying and airflow disturbance during the operation of transmission lines, ensuring that the phase spacing of the line always remains at a standard state. At the same time, the threaded engagement between the screw and the threaded plate can precisely lock the extension and retraction position. The alloy material of the reinforcing plate greatly improves the overall strength of the structure. The sliding structure of the fixed rod and the fixed tube can adapt to the slight deformation of the line, which can not only limit torsional displacement but also avoid structural rigidity damage, further improving the overall stability, deformation resistance, and line operation safety of the device.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, by setting a damping sleeve inside the bushing and combining it with uniformly distributed ring-shaped buffer springs, can absorb vibration energy when the transmission line experiences secondary span oscillations and generates vibration impact. At the same time, the elastic deformation of multiple sets of buffer springs distributes and buffers the vibration impact force in various directions, gradually weakening the transmission of vibration, effectively reducing the line oscillation amplitude, and preventing vibration from being directly transmitted to the transmission conductor and the spacer assembly frame. This significantly reduces fatigue wear and aging problems of conductors and supporting hardware, fundamentally improving the stability of transmission line operation, and solving the problems of poor vibration suppression effect and inability to buffer line vibration in multiple dimensions of traditional spacers.

[0026] 2. This invention, through its adjustable self-locking structure and convenient spacing adjustment structure, allows operators to precisely adjust the angle of the wire fixing ring and automatically lock it by rotating the worm gear through a simple operating block. This adapts to minor deformations and angular deviations during line operation. Furthermore, the installation position of the wire connector can be flexibly adjusted using the threaded bolt structure according to the actual line specifications and spacing, adapting to various construction conditions. Combined with protective structures such as support rings, protective covers, and protective rings, it effectively protects the transmission components and damping buffer components, preventing equipment corrosion, jamming, and wear caused by harsh outdoor environments. This reduces the probability of device failure and the difficulty of subsequent maintenance, improving the environmental adaptability and service life of the device. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the wire connector structure of the present invention; Figure 3 This is an exploded view of the wire connector structure of the present invention; Figure 4 This is a three-dimensional schematic diagram of the self-locking component of the present invention; Figure 5 This is a three-dimensional rear view schematic diagram of the structure of the present invention; Figure 6 The structure of this invention Figure 2 Enlarged view of point A in the middle; Figure 7 The structure of this invention Figure 3 Enlarged view of point B in the middle; Figure 8 Structure of the present invention Figure 4 Enlarged view of point C in the middle; Figure 9 A three-dimensional schematic diagram of the anti-torsion component of this invention; Figure 10 A schematic diagram illustrating the anti-torsion component of this invention.

[0028] In the diagram: 1. Spacer assembly frame; 2. Wire connector; 3. Wire retaining ring; 4. Self-locking assembly; 41. Shaft; 42. Connecting frame; 43. Worm gear; 44. Worm; 5. Bushing; 6. Buffer damping assembly; 61. Damping sleeve; 62. Buffer spring; 7. Spacing adjustment assembly; 71. Threaded port; 72. Fixing bolt; 8. Support ring; 9. Protective ring; 10. Operating block; 11. Protective cover; 12. Anti-torsion assembly; 121. First fixing plate; 122. Second fixing plate; 123. Fixing tube; 124. Fixing rod; 125. Threaded disc; 126. Metal disc; 127. Screw; 128. Anti-slip block; 129. Anti-slip texture; 130. First reinforcing disc; 131. Second reinforcing disc. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-10 A phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines includes a spacer assembly frame 1, an electrical connector 2 disposed on the outer side of the spacer assembly frame 1, an electrical fixing ring 3 disposed on the outer side of the electrical connector 2, a self-locking component 4 disposed on the top of the electrical connector 2, a bushing 5 disposed inside the electrical fixing ring 3 and the electrical connector 2, a buffer damping component 6 disposed inside the bushing 5, and a spacing adjustment component 7 disposed on the inner side of the electrical connector 2.

[0031] Please see Figures 1-10 The self-locking component 4 includes a shaft 41, which is fixedly connected inside the wire fixing ring 3. A connecting frame 42 is fixedly connected to the outside of the wire connector 2. The connecting frame 42 is rotatably connected to the shaft 41. A worm gear 43 is fixedly connected to the surface of the shaft 41. A worm 44 meshes with the outside of the worm gear 43.

[0032] Furthermore, by using shaft 41 and connecting frame 42 to achieve the rotational connection between wire fixing ring 3 and wire connector 2, it can adapt to the slight angular deviation and deformation generated during the operation of transmission lines, avoiding stress concentration and wear breakage of hardware caused by rigid connection. At the same time, by utilizing the meshing transmission structure of worm gear 43 and worm 44 on the outer side of shaft 41, the rotation angle of wire fixing ring 3 can be precisely controlled. With the help of the self-locking structure, self-locking fixation after angle adjustment is achieved, effectively avoiding line deviation and swaying caused by line vibration in the wind and secondary span oscillation, further improving the device's fixation stability on the line and adapting to complex line operation stress conditions.

[0033] Please see Figures 1-10 The buffer damping assembly 6 includes a damping sleeve 61, which is located inside the bushing 5. A buffer spring 62 is fixedly connected to the outer side of the damping sleeve 61, and the outer side of the buffer spring 62 is fixedly connected to the inner wall of the bushing 5.

[0034] Furthermore, by setting a damping sleeve 61 inside the bushing 5 and arranging a buffer spring 62 between the damping sleeve 61 and the inner wall of the bushing 5, an integrated buffer damping structure can be formed. When the transmission line experiences secondary span oscillation and generates vibration impact, the damping sleeve 61 can effectively absorb the vibration energy. At the same time, the buffer spring 62 buffers the instantaneous impact force through elastic expansion and contraction deformation, weakening the vibration transmission layer by layer, avoiding the vibration from being directly transmitted to the spacer assembly 1 and the transmission conductor, significantly reducing the line oscillation amplitude, reducing the fatigue wear and aging rate of the conductor and hardware, and effectively improving the safety and stability of the long-term operation of the transmission line.

[0035] Please see Figures 1-10 The spacing adjustment component 7 includes a threaded port 71, which is opened on the surface of the wire connector 2. A fixing bolt 72 is threadedly connected to the outer side of the threaded port 71, and the fixing bolt 72 is threadedly connected to the spacer assembly 1.

[0036] Furthermore, by opening a threaded port 71 on the surface of the wire connector 2 and using a fixing bolt 72, the wire connector 2 and the spacer assembly frame 1 are connected by a threaded assembly. The structure is simple and easy to disassemble and assemble. The staff can flexibly adjust the installation position of the wire connector 2 according to the actual installation spacing and line specifications of the transmission line, and accurately match the spacer layout requirements under different working conditions. At the same time, the threaded locking structure is firmly fixed and can effectively resist external disturbances caused by outdoor strong winds, rain and snow and other severe weather, avoid device spacing deviation, ensure the stable performance of the device in suppressing secondary spacing oscillation, and reduce the difficulty of on-site installation and commissioning.

[0037] Please see Figures 1-10 A support ring 8 is fitted on the surface of the worm gear 44, and the support ring 8 is fixedly connected to the surface of the wire connector 2.

[0038] Furthermore, by fitting a support ring 8 onto the surface of the worm 44 and fixing it to the surface of the wire connector 2, the worm 44 can be supported and limited in all directions. This effectively restricts the radial wobble and axial displacement generated during the operation of the worm 44, preventing misalignment, jamming, and tooth stripping during the meshing of the worm wheel 43 and worm 44. This ensures smooth operation and precise adjustment of the transmission structure, while also reducing the wear of the worm wheel 43 and worm 44, extending the service life of the transmission components, and ensuring the long-term stability and effectiveness of the device's self-locking and angle adjustment functions.

[0039] Please see Figures 1-10A protective ring 9 is fixedly connected to the outer side of the bushing 5, and the protective ring 9 is in contact with the damping sleeve 61.

[0040] Furthermore, by fixing a protective ring 9 to the outside of the bushing 5 and connecting it to the damping sleeve 61, effective protection can be provided for the core damping and buffering components such as the internal damping sleeve 61 and the buffer spring 62. This isolates the device from corrosive media such as rainwater, sand, fog, and condensation in the outdoor environment, preventing problems such as rust, dust accumulation, and jamming failure of the buffer damping component 6. At the same time, the protective ring 9 can buffer external force damage caused by external impacts and friction, protect the integrity of the internal buffer structure, ensure that the device has stable damping and vibration suppression capabilities for a long time, and reduce the probability of equipment failure and maintenance costs.

[0041] Please see Figures 1-10 An operating block 10 is fixedly connected to the inner side of the worm gear 44, and the operating block 10 is located on the left side of the wire connector 2.

[0042] Furthermore, by setting an operating block 10 exposed on the left side of the wire connector 2 on the inner side of the worm 44, a convenient force application point is provided for the staff to adjust the transmission structure of the worm gear 43 and worm 44. The worm 44 can be easily rotated without the need for special and complicated tools to complete the adjustment of the angle of the wire fixing ring 3 and the tightness of the wire fixing. This greatly simplifies the operation process of on-site debugging, disassembly, and maintenance of the device, improves construction and maintenance efficiency, meets the convenience requirements of outdoor high-altitude operations, and reduces the difficulty and safety risks of high-altitude operations.

[0043] Please see Figures 1-10 A protective cover 11 is provided on the left side of the wire connector 2, and the protective cover 11 is located outside the worm gear 43.

[0044] Furthermore, by installing a protective cover 11 on the left side of the wire connector 2 and the outside of the worm gear 43, the core structure of the meshing transmission of the worm gear 43 and worm 44 can be fully enclosed for protection. This effectively blocks the intrusion of outdoor wind, sand, rain, snow, birds, and debris, preventing dust, rust, and jamming on the transmission gear teeth. At the same time, it can resist damage from external impacts caused by falling objects from heights and line swaying, ensuring the accuracy and stability of the transmission self-locking structure, preventing device locking failure and vibration damping function failure due to transmission structure failure, and improving the device's adaptability and operational reliability in harsh outdoor environments.

[0045] Please see Figures 1-10 There are several buffer springs 62, which are evenly distributed in a ring.

[0046] Furthermore, by arranging several buffer springs 62 in a uniform ring distribution, the damping sleeve 61 can be subjected to more uniform force. The vibration impact force generated by line oscillation can be buffered synchronously by multiple sets of buffer springs 62, avoiding the problems of deformation and failure of buffer springs 62 and offset and wear of damping sleeve 61 caused by excessive force at a single point. It absorbs vibration energy from all directions in an all-round and comprehensive manner, greatly improving the buffering damping and vibration suppression effect of the device. At the same time, the uniformly distributed buffer spring 62 structure can improve the overall structural balance and structural strength, and extend the overall service life of the device.

[0047] Please see Figures 1-10 It also includes an anti-torsion assembly 12, which includes a first fixing plate 121 and a second fixing plate 122. Both the first fixing plate 121 and the second fixing plate 122 are fixedly connected inside the spacer assembly 1. There are two spacer assembly 1s. A fixing tube 123 is fixedly connected to the right side of the first fixing plate 121, and a fixing rod 124 is fixedly connected to the left side of the second fixing plate 122. The fixing rod 124 is slidably connected to the fixing tube 123, and a threaded disc 12 is fixedly connected to the surface of the fixing tube 123. 5. A metal disc 126 is fixedly connected to the surface of the fixing rod 124. A screw 127 is rotatably connected inside the metal disc 126. The screw 127 is threadedly connected to the threaded disc 125. An anti-slip block 128 is fixedly connected to the right side of the screw 127. The surface of the anti-slip block 128 is provided with anti-slip texture 129. A first reinforcing disc 130 is fixedly connected to the surface of the fixing rod 124. A second reinforcing disc 131 is fixedly connected to the surface of the fixing tube 123. Both the first reinforcing disc 130 and the second reinforcing disc 131 are made of alloy.

[0048] Furthermore, by adding an anti-torsion assembly 12 consisting of a first fixed plate 121, a second fixed plate 122, a fixed tube 123, a fixed rod 124, a screw 127, and a reinforcing plate, the device's end structures can be limited and anti-torsion can be achieved. This effectively solves the problem of overall torsion and misalignment of the spacer bars caused by conductor swing and airflow disturbance during the operation of the transmission line, ensuring that the phase spacing of the line always remains in a standard state. At the same time, the threaded engagement between the screw 127 and the threaded plate 125 can precisely lock the extension and retraction position. The alloy material of the reinforcing plate greatly improves the overall strength of the structure. The sliding structure of the fixed rod 124 and the fixed tube 123 can adapt to the slight deformation of the line, which can both limit torsional displacement and avoid structural rigidity damage, further improving the overall stability, deformation resistance, and line operation safety of the device.

[0049] The specific implementation process of this invention is as follows: The operator can rotate the worm gear 44 using the exposed operating block 10 on the left side of the wire connector 2. Through the meshing transmission between the worm gear 44 and the worm wheel 43 on the shaft 41, the shaft 41 and the wire fixing ring 3 rotate relative to the connecting frame 42 and the wire connector 2, thereby precisely adjusting the installation angle of the wire fixing ring 3. After the angle adjustment is completed, the self-locking characteristic of the worm wheel 43 and the worm gear 44 is used to fix the position, adapting to the slight angular deviations and deformations that occur during the operation of the transmission line, avoiding stress concentration and component wear caused by rigid connections. The support ring 8 on the outside of the worm gear 44 can provide limiting support to prevent shaking or misalignment during transmission. To address the issues of misalignment and tooth breakage, the protective cover 11 on the outside of the worm gear 43 can prevent the intrusion of wind, sand, rain, snow, and debris, protecting the transmission structure for long-term stable operation. The entire device is assembled with the spacer assembly frame 1 via the threaded port 71 on the wire connector 2 and the fixing bolt 72. On-site, the position of the wire connector 2 can be flexibly adjusted and locked according to the actual installation spacing and specifications of the transmission line, resisting external interference from severe outdoor weather and ensuring stable installation spacing. When the transmission line is running and generates secondary span oscillations or vibration impacts, the wire fixing ring 3 and the damping sleeve 61 in the inner bushing 5 of the wire connector 2 will absorb the vibration energy first. The inner part of the bushing 5 is ring-shaped. Multiple sets of uniformly distributed buffer springs 62 undergo synchronous elastic deformation, buffering and weakening the vibration impact layer by layer, and blocking the transmission of vibration to the spacer assembly frame 1 and the transmission line. By adding an anti-torsion assembly 12 composed of a first fixing plate 121, a second fixing plate 122, a fixing tube 123, a fixing rod 124, a screw 127, and a reinforcing plate, the structure at both ends of the device can be limited and anti-torsion, effectively solving the problem of overall torsion and misalignment of the spacer caused by conductor swing and airflow disturbance during the operation of the transmission line, ensuring that the phase spacing of the line always remains in a standard state. At the same time, the threaded engagement between the screw 127 and the threaded plate 125 can precisely lock the extension and retraction position. The high-quality reinforcement plate significantly improves the overall structural strength. The sliding structure of the fixing rod 124 and the fixing tube 123 can adapt to the slight deformation of the line, which can not only limit torsional displacement, but also avoid structural rigidity damage. This further improves the overall stability, deformation resistance and line operation safety of the device, and effectively reduces the line oscillation amplitude. The protective ring 9 on the outside of the bushing 5 can isolate corrosive media such as rainwater and sand, while protecting the internal buffer damping components from impact and friction damage, ensuring the continuous effectiveness of buffering and vibration suppression functions. The entire structure works together to comprehensively suppress the oscillation of the secondary span of the transmission line, reduce the fatigue aging of the conductors and fittings, and ensure the long-term safe and stable operation of the transmission line.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines, characterized in that: The device includes a spacer assembly frame (1), on the outside of which a wire connector (2) is provided, on the outside of which a wire fixing ring (3) is provided, on the top of which a self-locking component (4) is provided, and both the inside of the wire fixing ring (3) and the inside of the wire connector (2) are provided with bushings (5), inside the bushings (5) are provided with buffer damping components (6), and on the inside of the wire connector (2) are provided with spacing adjustment components (7).

2. The phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines according to claim 1, characterized in that: The self-locking assembly (4) includes a shaft (41), which is fixedly connected inside the wire fixing ring (3). A connecting frame (42) is fixedly connected to the outside of the wire connector (2). The connecting frame (42) is rotatably connected to the shaft (41). A worm gear (43) is fixedly connected to the surface of the shaft (41), and a worm (44) meshes with the outside of the worm gear (43).

3. The phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines according to claim 1, characterized in that: The buffer damping assembly (6) includes a damping sleeve (61) located inside the bushing (5), and a buffer spring (62) is fixedly connected to the outer side of the damping sleeve (61), and the outer side of the buffer spring (62) is fixedly connected to the inner wall of the bushing (5).

4. The phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines according to claim 1, characterized in that: The spacing adjustment assembly (7) includes a threaded opening (71) on the surface of the wire connector (2), and a fixing bolt (72) is threaded to the outside of the threaded opening (71), and the fixing bolt (72) is threaded to the spacer assembly (1).

5. The phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines according to claim 2, characterized in that: The surface of the worm (44) is fitted with a support ring (8), which is fixedly connected to the surface of the wire connector (2).

6. The phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines according to claim 3, characterized in that: A protective ring (9) is fixedly connected to the outside of the bushing (5), and the protective ring (9) is in contact with the damping sleeve (61).

7. The phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines according to claim 2, characterized in that: An operating block (10) is fixedly connected to the inner side of the worm (44), and the operating block (10) is located on the left side of the wire connector (2).

8. The phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines according to claim 2, characterized in that: A protective cover (11) is provided on the left side of the wire connector (2), and the protective cover (11) is located outside the worm gear (43).

9. The phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines according to claim 3, characterized in that: The number of buffer springs (62) is several, and the buffer springs (62) are evenly distributed in a ring.

10. The phase-to-phase spacer device for suppressing secondary span oscillations in transmission lines according to claim 1, characterized in that: It also includes an anti-torsion assembly (12), which includes a first fixing plate (121) and a second fixing plate (122). The first fixing plate (121) and the second fixing plate (122) are both fixedly connected inside the spacer assembly frame (1). There are two spacer assembly frames (1). A fixing tube (123) is fixedly connected to the right side of the first fixing plate (121), and a fixing rod (124) is fixedly connected to the left side of the second fixing plate (122). The fixing rod (124) is slidably connected to the fixing tube (123), and a threaded disc (125) is fixedly connected to the surface of the fixing tube (123). A metal disc (126) is fixedly connected to the surface of the fixing rod (124). A screw (127) is rotatably connected inside the metal disc (126). The screw (127) is threadedly connected to the threaded disc (125). An anti-slip block (128) is fixedly connected to the right side of the screw (127). Anti-slip texture (129) is provided on the surface of the anti-slip block (128). A first reinforcing disc (130) is fixedly connected to the surface of the fixing rod (124). A second reinforcing disc (131) is fixedly connected to the surface of the fixing tube (123). The first reinforcing disc (130) and the second reinforcing disc (131) are both made of alloy.

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